I think your step grandma.
할아버지 (Hara buhjee)
Your grandfather's brother is your great uncle.
Your father's grandfather is your great grandfather.
He would be your great great uncle, but you could call him whatever endearing name you both prefer. my great grandfathers brother or my great uncle
She would be your aunt. The neice's kids will be your second cousins.
Grandfather, grandad, grandpa..depends on the person
The possessive form of the plural noun grandfathers is grandfathers'.example: Both of my grandfathers' names are George.
Your grandfather's uncle is your great great uncle. Your grandfather's brother would be your great uncle
by makin a party and inviting all ur grandfathers from death and gettin drunk with them
you call an emperor's wife an emperess an emperess
what i call my father elder brother's wife